Bs problem

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Problem

B made a question for A:
There is an array A with length n, and an array B with length m. By choosing a number from A and a number from B and adding them, the number n*m results. He wants to know the kth number of the numbers that have this result. The index starts at 1.

A does not know how to solve this problem, so he let you solve it.

Three integers(n, m, and k) are inputted on the first line. They represent the length of A and B, and the "kth" that A wants to know.

On the second line, there are n integers, where the "i-th" number of the line represents the ith index of A.

On the third line, there are m integers, where the "i-th" number of the line represents the ith index of B.

Print an integer in a line, which is the answer.

Options

exec is denied

rejudge feature is enabled

now post-mortem time, all source codes will be revealed

Sample input:_

2 3 5
2 2
1 3 2

Sample output:

5

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